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Classes and Traits |
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| UrlPath | |
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| __construct | |
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| get | |
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| normalize | |
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| reverse | |
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| condition | |
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| literal | |
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| localeClause | |
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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Cosray\Finder\Output; |
| 6 | |
| 7 | use Cosray\Context; |
| 8 | use Cosray\Exception\ParserOutputException; |
| 9 | use Cosray\Finder\Input\Token; |
| 10 | use Cosray\Finder\Input\TokenType; |
| 11 | |
| 12 | final readonly class UrlPath extends Expression implements Output |
| 13 | { |
| 14 | public function __construct( |
| 15 | public Token $left, |
| 16 | public Token $operator, |
| 17 | public Token $right, |
| 18 | private Context $context, |
| 19 | ) {} |
| 20 | |
| 21 | public function get(): string |
| 22 | { |
| 23 | [$pathToken, $valueToken, $operator] = $this->normalize(); |
| 24 | [$localeClause, $isNegated, $condition] = $this->condition($valueToken, $operator); |
| 25 | |
| 26 | // Safe SQL fragment: table() validates the hardcoded identifier and configured prefix. |
| 27 | $table = $this->context->config->db->table('url_paths', $this->context->db->getPdoDriver()); |
| 28 | |
| 29 | return sprintf( |
| 30 | '%sEXISTS (SELECT 1 FROM %s p WHERE p.node = n.node AND p.inactive IS NULL%s AND %s)', |
| 31 | $isNegated ? 'NOT ' : '', |
| 32 | $table, |
| 33 | $localeClause, |
| 34 | $condition, |
| 35 | ); |
| 36 | } |
| 37 | |
| 38 | /** |
| 39 | * @return array{0: Token, 1: Token, 2: TokenType} |
| 40 | */ |
| 41 | private function normalize(): array |
| 42 | { |
| 43 | if ($this->left->type === TokenType::Path) { |
| 44 | return [$this->left, $this->right, $this->operator->type]; |
| 45 | } |
| 46 | |
| 47 | if ($this->right->type !== TokenType::Path) { |
| 48 | throw new ParserOutputException($this->left, 'A path expression requires a path operand.'); |
| 49 | } |
| 50 | |
| 51 | return [$this->right, $this->left, $this->reverse($this->operator->type)]; |
| 52 | } |
| 53 | |
| 54 | private function reverse(TokenType $type): TokenType |
| 55 | { |
| 56 | return match ($type) { |
| 57 | TokenType::Greater => TokenType::Less, |
| 58 | TokenType::GreaterEqual => TokenType::LessEqual, |
| 59 | TokenType::Less => TokenType::Greater, |
| 60 | TokenType::LessEqual => TokenType::GreaterEqual, |
| 61 | default => $type, |
| 62 | }; |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * @return array{0: string, 1: bool, 2: string} |
| 67 | */ |
| 68 | private function condition(#[\SensitiveParameter] Token $valueToken, TokenType $operator): array |
| 69 | { |
| 70 | $localeClause = $this->localeClause(); |
| 71 | |
| 72 | return match ($operator) { |
| 73 | TokenType::Equal => [$localeClause, false, $this->isComparison($valueToken, true)], |
| 74 | TokenType::Unequal => [$localeClause, true, $this->isComparison($valueToken, true)], |
| 75 | TokenType::Like => [$localeClause, false, $this->scalarComparison($valueToken, 'LIKE')], |
| 76 | TokenType::Unlike => [$localeClause, true, $this->scalarComparison($valueToken, 'LIKE')], |
| 77 | TokenType::ILike => [$localeClause, false, $this->scalarComparison($valueToken, 'ILIKE')], |
| 78 | TokenType::IUnlike => [$localeClause, true, $this->scalarComparison($valueToken, 'ILIKE')], |
| 79 | TokenType::Regex => [$localeClause, false, $this->scalarComparison($valueToken, '~')], |
| 80 | TokenType::NotRegex => [$localeClause, true, $this->scalarComparison($valueToken, '~')], |
| 81 | TokenType::IRegex => [$localeClause, false, $this->scalarComparison($valueToken, '~*')], |
| 82 | TokenType::INotRegex => [$localeClause, true, $this->scalarComparison($valueToken, '~*')], |
| 83 | TokenType::In => [$localeClause, false, $this->scalarComparison($valueToken, 'IN')], |
| 84 | TokenType::NotIn => [$localeClause, true, $this->scalarComparison($valueToken, 'IN')], |
| 85 | TokenType::Greater => [$localeClause, false, $this->scalarComparison($valueToken, '>')], |
| 86 | TokenType::GreaterEqual => [$localeClause, false, $this->scalarComparison($valueToken, '>=')], |
| 87 | TokenType::Less => [$localeClause, false, $this->scalarComparison($valueToken, '<')], |
| 88 | TokenType::LessEqual => [$localeClause, false, $this->scalarComparison($valueToken, '<=')], |
| 89 | default => throw new ParserOutputException( |
| 90 | $this->operator, |
| 91 | 'Operator not supported for path expressions.', |
| 92 | ), |
| 93 | }; |
| 94 | } |
| 95 | |
| 96 | private function isComparison(#[\SensitiveParameter] Token $valueToken, bool $allowNull): string |
| 97 | { |
| 98 | if ($valueToken->type === TokenType::Null) { |
| 99 | if (!$allowNull) { |
| 100 | throw new ParserOutputException($valueToken, 'NULL is not supported for this path comparison.'); |
| 101 | } |
| 102 | |
| 103 | return 'p.path IS NULL'; |
| 104 | } |
| 105 | |
| 106 | return 'p.path = ' . $this->literal($valueToken); |
| 107 | } |
| 108 | |
| 109 | private function scalarComparison( |
| 110 | #[\SensitiveParameter] |
| 111 | Token $valueToken, |
| 112 | string $operator, |
| 113 | ): string { |
| 114 | if ($valueToken->type === TokenType::Null) { |
| 115 | throw new ParserOutputException( |
| 116 | $valueToken, |
| 117 | 'NULL is only supported with = or != for path expressions.', |
| 118 | ); |
| 119 | } |
| 120 | |
| 121 | return 'p.path ' . $operator . ' ' . $this->literal($valueToken); |
| 122 | } |
| 123 | |
| 124 | private function literal(#[\SensitiveParameter] Token $token): string |
| 125 | { |
| 126 | return match ($token->type) { |
| 127 | TokenType::String => $this->context->db->quote($token->lexeme), |
| 128 | TokenType::Number, TokenType::Boolean => $this->context->db->quote($token->lexeme), |
| 129 | TokenType::List => $token->lexeme, |
| 130 | default => throw new ParserOutputException( |
| 131 | $token, |
| 132 | 'Path comparisons only support literal values.', |
| 133 | ), |
| 134 | }; |
| 135 | } |
| 136 | |
| 137 | private function localeClause(): string |
| 138 | { |
| 139 | $path = $this->left->type === TokenType::Path ? $this->left->lexeme : $this->right->lexeme; |
| 140 | $parts = explode('.', $path); |
| 141 | |
| 142 | if (count($parts) === 1 || count($parts) === 2 && $parts[1] === '*') { |
| 143 | return ''; |
| 144 | } |
| 145 | |
| 146 | if (count($parts) !== 2) { |
| 147 | throw new ParserOutputException( |
| 148 | $this->left, |
| 149 | 'Invalid path selector. Use path, path.?, path.*, or path.<locale>.', |
| 150 | ); |
| 151 | } |
| 152 | |
| 153 | $selector = $parts[1] === '?' ? $this->context->localeId() : $parts[1]; |
| 154 | |
| 155 | if (preg_match('/^[A-Za-z0-9_-]{1,64}$/', $selector) !== 1) { |
| 156 | throw new ParserOutputException($this->left, 'Invalid locale in path selector.'); |
| 157 | } |
| 158 | |
| 159 | return ' AND p.locale = ' . $this->context->db->quote($selector); |
| 160 | } |
| 161 | } |